METHOD FOR DETERMINING THE NEAR POINT, DETERMINING THE NEAR POINT DISTANCE, DETERMINING A SPHERICAL REFRACTIVE INDEX AND FOR PRODUCING A SPECTACLE LENS AND CORRESPONDING MOBILE TERMINALS AND COMPUTER PROGRAMS

A method for determining a near point and a near point distance of a person is disclosed, as well as methods for determining a spherical refractive power. In one implementation, optotypes are displayed on a mobile terminal and the person is asked to move the mobile terminal to the near point of the...

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Bibliographische Detailangaben
1. Verfasser: WEIMANN, Claudius
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A method for determining a near point and a near point distance of a person is disclosed, as well as methods for determining a spherical refractive power. In one implementation, optotypes are displayed on a mobile terminal and the person is asked to move the mobile terminal to the near point of the person. The position of the mobile terminal is determined on the basis of images of the surroundings and measurements of an acceleration of the mobile terminal. The near point distance can then be determined from the position of the mobile terminal at the near point and a position of the eyes of the person. Corresponding computer programs and corresponding mobile terminals are also disclosed.